Screening Evaluation for Studies of the National Institute on Alcohol Abuse and Alcoholism (NIAAA)...
Alcoholic IntoxicationAlcoholism1 moreThis protocol has three purposes: (1) to evaluate subjects for inclusion or exclusion from other NIAAA protocols; (2) to provide a common set of descriptive information that will be available on all NIAAA research subjects; (3) to allow NIAAA medical and nursing staff to treat alcoholic patients for acute alcohol intoxication or alcohol withdrawal before requiring patients to consent to evaluation for participation in research studies. Information collected will include such items as psychiatric diagnoses, presence or absence of brain, liver or other organ damage, history of the amount of past alcohol consumption, other substance use and family history of alcoholism. This information will allow investigators to determine for which, if any, NIAAA research studies a subject is eligible. In order to avoid requiring intoxicated subjects to consent for procedures such as HIV testing, psychiatric interviews, and Magnetic Resonance Imaging (MRI) of the brain we will obtain consent from all alcoholic subjects in two phases, using two separate consent forms. The first consent form will express the subject's desire to be admitted to the NIAAA inpatient unit for the purpose of treatment for alcoholism and will authorize only medical evaluation and treatment for alcoholism and associated problems. After an alcoholic subject has been admitted to the inpatient unit and is judged to be no longer intoxicated or suffering from acute alcohol withdrawal he or she will be presented with the second consent which will describe the evaluation for participation in other NIAAA research studies. Non-alcoholic, healthy controls will sign only one consent form describing the data to be collected and evaluation for participation in other NIAAA research studies.
Genetic Factors and Interrelationships for Cancer Risk-Related Behaviors and Complex Traits
Acquired Immunodeficiency SyndromeAlcoholism3 moreWe propose to conduct a multifactorial genetic study of cancer risk-related behaviors and other complex human characteristics. The main areas of interest are tobacco smoking, excess alcohol consumption, psychological traits, and HIV/AIDS susceptibility and progression. The subjects will be adult male and female probands who display one or more of the phenotypes of interest together with their brothers, sisters and parents. Information on tobacco and alcohol use, psychological and personality traits, sexual behavior, HIV status and progression, and other characteristics with possible genetic components will be obtained through structured interviews and questionnaires. DNA will be prepared from blood samples and typed for a series of candidate genes chosen for function and for random polymorphic markers. By correlating the genotypic and phenotypic information, we hope to identify individual loci that interactively contribute to many different aspects of human health and disease.
Comorbidities and Virologic Outcome Among Patients on Anti-retroviral Therapy in Rural Lesotho
HIVMetabolic Syndrome3 moreThis study is conducted in a cohort of HIV-positive patients on first-line anti-retroviral therapy (ART) in rural health facilities in Lesotho, Southern Africa. It examines virologic treatment failure as well as chronic communicable and non-communicable comorbidities among patients on ART. The study has two phases. Phase 1 consists of a cross-sectional survey to determine prevalence of treatment failure as well as the prevalence of the following comorbidities: diabetes mellitus, arterial hypertension, dyslipidemia, depression, alcohol use disorder, hepatitis B and hepatitis C. Phase 2 is a cohort study, where patients with treatment failure or a comorbidity or both are followed-up for 12 months.
Epi-Genetic Modulators of Fear Extinction in Alcohol Dependence
FearStress1 moreBackground: - Researchers want to learn if people with alcohol dependence have more difficulty learning to feel calm, or learn to fear things more easily. They also want to study how early life stress (ELS) affects the ability to learn to feel calm. Objective: - To see if people with alcohol dependence and/or ELS have a harder time learning to feel calm than people without these. Also, to see if DNA is changed by ELS and if this change affects fear conditioning and extinction. Eligibility: Adults ages 21-65 with and without an alcohol use disorder (AUD) and with and without ELS. Healthy volunteers. Design: Participants will be screened with: Medical history Physical exam Blood and urine tests Psychological tests Treatment for symptoms of alcohol withdrawal, if needed Healthy volunteers will have 1 overnight visit (2 days, 1 night). AUD participants will stay at the clinic for about 4 weeks. Participants will: Rate alcohol use/craving, depression, anxiety, and childhood trauma. Have psychophysiological measures: electrodes and mild electric shock. Have a functional magnetic resonance imaging (MRI) scan. Participants will lie on a table in a metal cylinder with a coil over their head. In the first scanning session, they will see pictures, do a simple task, and may get shocks. Participants will also do a second scanning session in which they will perform the aforementioned fear conditioning and extinction task, as well as a facial expression matching task, an affective word processing task, and a task measuring valuation of monetary rewards. Answer questions about their emotions (some participants). Have blood drawn from an arm vein or intravenous (IV) line. AUD participants will get a dexamethasone pill. The next day, they will get a hormone injected in and have blood drawn from an IV line. AUD participants will have 3 follow-up visits with questions and blood and lab tests.
Antiretroviral Treatment Outcomes in HIV-HBV Co-infected Patients in Southern Africa
Hepatitis B VirusHIV4 moreThis is a prospective HIV cohort that aims to establish causes of liver disease among HIV-infected individuals in Zambia, including viral hepatitis and alcohol.
Alcohol Consumption and Stress at Patients Alcohol-dependants
Alcohol DependenceThis 3 weeks study examines the correlation between stress and alcohol using an ecological, prospective design.
Exploring Gut-Brain and Brain-Gut Interactions in Alcohol Use Disorder Via Microbiota Investigations:...
AlcoholismBackground: Alcohol use disorder (AUD) affects about 10 percent of people in the U.S. Studies show a relationship between the bacteria (microbiota) in the gut and the brain. Researchers think this may influence AUD. They want to learn more about changes in gut bacteria that may occur in people with AUD. Objectives: To study gut microbiota differences in current drinking versus abstinent people with AUD. Also to test if gut microbiota are related to alcohol cue-induced craving. Eligibility: People ages 21-70 who have AUD (both abstinent and current heavy drinkers) or are healthy, moderate drinkers Design: Participants will be screened in Protocol 14-AA-0181. Participants will have a first visit. They will have 4 more visits within about 10 days. Visits include: Fecal sample collection Physical exam Blood tests Assessment of diet and alcohol use X-rays to test body composition, They will sit under a ventilation hood to measure metabolism. They must fast 12 hours before this test. They will drink a solution. Their urine is collected over 5 hours. Ultrasound of the liver area. They must fast overnight before this test. At 2 visits, they will be in a bar-like setting. They will be exposed to stimuli associated with eating and drinking. They will rate their urge to drink alcohol and their food cravings. Participants will collect their stool throughout the study. They will also record information about their diet and daily activities like sleep and exercise. At the end of the study, participants will discuss their drinking. They will receive counseling if needed. ...
Study of Mechanisms of Emotion Regulation in Alcohol-abstinent Patients
Alcohol Use DisorderBackground: Difficulties in assigning and identifying emotional states, or to regulate the emotional costs are recognized as one of the major factors of relapse. This study aimed to evaluate the emotion regulation processes, in short term (STA, after 1month of withdrawal) and long-term alcohol abstinent individuals (LTA, at least six months of abstinence), compared to healthy control participants (C) in a positive and negative emotion induction protocol. Main aim: Evaluating the emotional regulation deficits assessed with physiological indicators (heart rate variability, electrodermal response, pupil diameter) and clinically in presentations of visual stimuli to emotional value (positive, negative, neutral) in alcohol use disorder's (AUD) patients with short and long term abstinent compared to a control group of healthy subjects. The investigators are particularly interested in the evolution of heart rate variability considered as a good marker of vulnerability to AUD. Secondary objectives: Studying the relationships between physiological measures and clinical variables such as behavioral indicators and self-reported assessment of cognitive and emotional skills among the three groups (STA, LTA and C).
Acoustic Liver Biopsy in Normals and in Patients With Cirrhosis Using Endoscopic Ultrasound
AlcoholismCirrhosis1 moreThe purpose of this study is to determine the amount of fibrosis in the liver of hepatitis C patients with advanced fibrosis, using endoscopic ultrasound.
The Measurement of Mood Variability and Sustained Attention in Women With Alcohol Dependence.
Alcohol AbuseAnxiety Disorders1 moreThe purpose of this study is to measure daily mood changes and to find out whether these mood changes are related to the ability to maintain attention on a task. Problems with mood are more common among women however, the association between symptoms of alcohol abuse and mood syndromes is inconsistent. First we hypothesize that women with lifetime diagnoses of alcohol abuse will not demonstrate higher symptoms of anxiety, depression, neuroticism and mood variability than control groups. Second, that the severity of these symptoms will not correlate with performance on measures of sustained attention.